Queen Victoria: A Life From Beginning to End (Biographies of ...
Hourly History
Death Defied
Luuc Kooijmans
Clear Thinking
R. W. Jepson
When Einstein Walked With Gödel: Excursions to the Edge of Thought
Jim Holt
Husserl's Philosophy of Science and The Semantic Approach
Thomas Mormann
CK-12 Geometry
Ck-12 Foundation